public void testEcheckCredit()
{
echeckCredit echeckcredit = new echeckCredit();
echeckcredit.amount = 12;
echeckcredit.litleTxnId = 123456789101112;
batchRequest.addEcheckCredit(echeckcredit);
Assert.AreEqual(1, batchRequest.getNumEcheckCredit());
Assert.AreEqual(echeckcredit.amount, batchRequest.getSumOfEcheckCredit());
mockLitleFile.Verify(litleFile => litleFile.createRandomFile(It.IsAny<String>(), It.IsAny<String>(), It.IsAny<String>(), mockLitleTime.Object));
mockLitleFile.Verify(litleFile => litleFile.AppendLineToFile(mockFilePath, echeckcredit.Serialize()));
}